/Engine/Source/Runtime/Datasmith/CADKernel/Public/CADKernel/Mesh/Structure/ThinZone2D.h
Use Marker 3 flag to count edge once Edge Marker 3 has to be reset after.
void GetEdges ( [TArray](API\Runtime\Core\Containers\TArray)< [FTopologicalEdge](API\Runtime\CADKernel\CADKernel\Topo\FTopologicalEdge) * > & OutSideAEdges, [TArray](API\Runtime\Core\Containers\TArray)< [FTopologicalEdge](API\Runtime\CADKernel\CADKernel\Topo\FTopologicalEdge) * > & OutSideBEdges ) const